Completion bonuses
Get a 100 completion for sonicshadow or silvers episode to unlock the audio a theator room under the extras menu
Fast Sonic
In multiplayer mode in any level or match equip the Red Gem on Sonic Activate it and hold it then die While still holding the activation button wait till you respawn When you respawn deactivate the gem You will now run ten times faster than normal Also the time will automatically be slow
Longer jumps with Silver
Jump with Silver by pressing X then press X again while in midair This makes Silver float around When floating in midair tap X while moving in any direction instead of holding the button down This will make Silver jump further
Shoemaker
After the the video clip of the princess of soleanna there will be a town square go through it to the store and before you get to the store you will see an old man with a mark on his head talk to him he made some shoes if you test them for him you get to keep them these shoes will come of good use
Silver medals
The silver medals are everywhere On the first level when you go through the mirror you will end up at the the beach When you jump on and off the big rocks and you land on the building do not grind down the rail Look round and you will find a silver medal After that go down the rail and when you go through the loops you will be running on water To the left there will be another silver medal and a life 1up Be warned because if you walk on a rock you cannot run back off it
Small Sonic
Select multiplayer mode and choose Battle mode Select Silver and Sonic and go to any level Get to the first checkpoint and have Sonic fall and appear at the checkpoint However do not move him Then make Silver fall and appear at the checkpoint Just when Silver appears freeze Sonic When he is frozen he appears very small